Tekritory



(No Model.) 2 Sheets-Sheet 1.

J. B. YOUNG.

TIME LOCK. No. 314,288.. Patented Mar. 24, 1885.

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(No Model.) 2 Sheets-Sheet 2.

J. B. YOUNG.

. TIME LOCK. No. 314,283. Patented Mar.24. 1885.

N. PETERS. Fhnlwufllognpher, Washmgian. D4 c.

UNITED I STATES JACKSON B. YOUNG, OF SIOUX FALLS, DAKOTA TER-RITORY.

PATENT OFFICE. p,

TIMEI-LOCK.

EPECIFICATION forming part of Letters Patent No. 314,283, dated March 24, 1885.

' Application filed J zuiuary 7, 188-]. (No model.) a

To all whom it may concern.-

Be it known that I, JACKSON B. YoUNe,a

citizen of the United States, and residing at Sioux Falls, in the county of Minnehaha and Territory of Dakota, have invented a certain new and useful Improvement in Time-Locks, which is fully set forth in the following specification, reference being had to the accompa: nying drawings, in which- Figure 1 represents an elevation of; the inside of the door with a time-lock attached thereto and my improvement applied; Fig. 2, a section of the same takenv on the line at 0:, Fig. 1; Fig. 3, a plan section taken on the line 3 3 Fig. 2; Fig. 4, a detail edge elevation of the inclosing-case and a portion of the door; and Fig. 5 a sectional view of the case alone, taken on the line 2 a, Fig. 3.

My invention relates to an improvement in time-locks, the object being to insulate the time-works to prevent their being stopped by electrical action which might be applied over the outside of the vault or safe.

The invention is especially applicable to time-locks such as are described and shown in my prior application for improvements in time-locks filed September 26, 1883, and is an improvement to the invention therein described and shown.

In the operation of the mechanism shown and described in my prior application, some one or more of the tumblers of the lock will be immediately disarranged by the operation of the time-works whenever set, and so while the time-works arerrunning the combination cannot be made so as .to unlock the lock. Obviously,if the time-works could be stopped, however, any person having the combination or any other means of arranging the tumblers in the proper position for unlocking would be able to release the lock and gain admission to the safe or vault. Now, possibly, the time works might be stopped by electrical action, and if by any means a strong current of electricity could be sent to the time-works, it would very likely stoptheir action and so enable the tumblers to be manipulated. In or:

'der to prevent this, I propose to completely and perfectly insulate the time-works, so that they will be proof against electrical action from the outside. This insulation 'may be accomplished in various ways, and I will proceed to describe fully one way in which I have carried out my invention in practical form, and will then point out definitely in the claims the special improvements which I believe tobe new and wish to protect by Letters Patent.

It will not be necessary to describe fully the construction and operation of the lock and time-works, although I have represented them quite fully in the drawings. The mechanism shown therein, however, is the same as that shown and fully describcdin my prior application mentioned above, to which I refer for fuller information, and shall only here mention such parts as are necessary to an understanding of the construction and operation of my present improvement.

In the drawings, A represents a portion of a door or any other support to which the lock and time-works are attached. The lock B, as shown in the drawings, is of ordinary tumbler form, four tumblers, b, b, If, and I), being shown in the drawings, and substantially as in my prior application. in the drawings are also the same as illustrated in my prior application, and need not be fully described. The friction-wheel D, which is operated by the timeworks, is arranged to run in contact with one of the tumblers the same as in my prior application; but in my present improvement this wheel is made of rubber or other material, which is an electric non-conductor, so as to prevent the passage of an elec tric current tot-he time-works through this wheel.

In order to completely insulate the timeworks I provide an inclosing-case, E, of rubher or other material which is anon-conductor of electricity and of such size andform as to entirely surround and inclose the time-works. The front side, e, of this case is hinged so as to be opened in order to introduce the works. A portion, 6, of the top of the case is do pressed, so that it may be passed under the tumblers in the arrangement of the parts shown in the drawings, while the higher part of the case-top,e",covers and protects the gear-wheel on the friction-wheel shaft. This depressed top section, 6, is also hinged at one end of the body of the case, so that it may be raised to permit the friction-wheel to pass into the rear The time-works 0 shown of the case, and it is provided with a slot or opening, 2 for the accommodation'of this friction-wheel, which it is obvious must project outside of the case in order to have workingcontact with the tumbler or tumblers. This being the case it will be seen at once that when this depressed portion of the top is down in its proper position it will stand in the way of the friction-wheel and so prevent the timeworks from being set back into the case from the front. The provision of a hinge obviates this difiiculty by permitting the top to be raised like a lid for the introduction of the works, and then-closed down and fastened in place, the friction-wheel projecting up through the slot. The vertical section of the case between the upper and lower portions of the top is fastened to the latter and is raised and lowered therewith. The works may be set into the insulating-case and secured therein in any suitable way. I prefer, however,,to support them on ways G within the case, onto which the works are slipped, and then fasten them in place by means of suitable screws, f, entering the ways. With this construction in applying the case to the particular form of works shown in the drawings, it will be necessary to diminish the width of the case to correspond to the main support or frame of the works beyond which the dial G projects considerably at one side. The case must of course have a corresponding projecting wing to cover this dial; but it may not be so convenient to hinge the top. as described above, and in this case it may be fastened down by screws 6, as shown in Fig. 5 of the drawings, and thus be made removable at pleasure.

It is obvious from this description that the time-works are permanently secured within the case. Now, the insulating-case is attached to the lock-support in any suitable way, provided, however, that the insulation is not destroyed. In order to effect this attachment the back of the case may be provided with projecting flanges H, which will provide means for fastening the case in place by bolts and nuts, precisely as the works are secured to the support in my prior application. As in this arrangement the fastening-bolts are connected to flanges outside of the case, the insulation will of course not be disturbed. Instead of this construction, the fastening-bolts I may pass directly into the interior of the case at the back thereof, as shown in Fig. 8 of the drawings, and be secured to the back of the case by means of suitable nuts, i. In this construction, however, the ends of the bolts and the fastening-nuts on the inside of the case should be entirely covered by an insulatingnut of rubber or other non-conducting material which may be attached to the end of the bolt, thereby preventing the possible entrance of electricity to the inside of the case through the bolts and to the works, and maintain a perfect insulation.

In order to counteract the effects of shock from blows, or any other cause, I place an elastic washer, ,J, on the fastening-bolts outside of the case, and another similar washer, K, on the same bolts inside of the case, these washers being preferably of rubber or coiled metal springs. It is obvious that with this provision of elastic washers on each side of the case the effect of shock from blows or any other cause will be taken up in both directions-that is, the direct effect of the blow and the reaction therefrom will be taken up or counteracted by the two washers, one operating to counteract the tendency to movement in one direction and the other in the opposite direction. These washers are to be applied to the fastening-bolts whether the latter are connected to outside flanges on the case or passed directly into the back thereof, or in whatever way they are connected to the case. Their location may perhaps be changed and the same effect secured; hence I do not limit myself to the precise arrangement here mentioned. It will be seen that with this inclosing insulating-case for the time-works fastened in position on the lock-support, the timeworks are entirely protectedv from the effect of currents of electricity, the case of insulating material preventing the entrance of such ourrents to the interior works, and so all danger of 5 stopping the time-works by electrical action is avoided, which is a somewhat important improvement to the invention setforth in my prior application. I do not wish to be understood, however, as confining my invention to this particular improvement of insulating the works. It is possible that a tolerable insulation may be obtained in some other way-for instance, by supporting the works on insulating bolts orposts, and placing suitable insulating-plates between the lock and the timeworks, so as to prevent the jumping of the electrical current from the former to the latter, which might be possible in the construction shown in the drawings without the case. I prefer, however, the surrounding-case of in sulating material, for it affords the most complete protection; but at the same time the broad idea of my invention is to insulate the time-works of the lock in any suitable manner and by any suitable means, so as to prevent the stopping of the works by electricity. It will be understood, of course, that the case is set with reference to the lock substantially as described in my prior application, so that the operating friction -wheel will be brought into the proper working relation to the tumbler or tumblers 011 which it is to act, and also that the case may have the adjusting device described in my prior application, or any other suitable adjusting device, whereby its position may be arranged to bring all the parts into suitable working position. It is not necessary to describe these mechanisms here, as they really constitute no part of my present improvement.

Having thus described m'yinvention, what I.

ICO

claim as new, and desire to secure by Letters Patent, is

1. The herein-described method of protecting ti me-locks from disturbance by electricity, which consists in insulating them by means of rubber or other non conducting material, sub stantially as and for the purposes specified.

2. The herein-described method of protectin g time-locks from disturbance by electricity, which consists in inclosing the time-works in an i nsuiating-case of rubber or other non-conducting material, substantially as and for the purposes specified.

3. The tumbler-lock B, in combination with the time-works (J, the friction-wheel D, of rubber or otherelectric non-conductor, and the inciosing-case E, of rubber or other electric non-conductor, provided with a movable front, 6, and a movable top section, 6, slotted,

, of electricity from the tumblers to the timeworks is prevented, substantially as and for the purposes specified.

J AOKSON B. YOUNG.

Vitnesses:

' WV. 0. HOLLISTER, O. F. IRVINE. 

